80989133 has 2 divisors, whose sum is σ = 80989134. Its totient is φ = 80989132.

The previous prime is 80989127. The next prime is 80989147. The reversal of 80989133 is 33198908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78623689 + 2365444 = 8867^2 + 1538^2 .

It is a cyclic number.

It is not a de Polignac number, because 80989133 - 2¹⁰ = 80988109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80989933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40494566 + 40494567.

It is an arithmetic number, because the mean of its divisors is an integer number (40494567).

Almost surely, 2^80989133 is an apocalyptic number.

It is an amenable number.

80989133 is a deficient number, since it is larger than the sum of its proper divisors (1).

80989133 is an equidigital number, since it uses as much as digits as its factorization.

80989133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 80989133 is about 8999.3962575275. The cubic root of 80989133 is about 432.6555209354.

The spelling of 80989133 in words is "eighty million, nine hundred eighty-nine thousand, one hundred thirty-three".